Hello Punch

I'm sorry that you are feeling so anxious and I can't offer reassurance except to say that an infection or benign condition is being considered so must be more likely than a serious disease or malignancy. I do have lung cancer which was symptomatic but only when it was a large enough to cause an obstruction to the function of my lung - dry cough and wheeze- and also large enough to have spread locally, but there were no symptoms at all before that.
However, if you do have a type of lung disease, you have found it before there were any symptoms and this could possibly mean that it is more treatable. Maybe you could think about it like that as you are trying to cope with the anxiety.

Waiting for a diagnosis is a horrible and difficult time. I will be thinking of you and have everything crossed for a good outcome. Let me know.

Best wishes

Joy